which of the following symbols would be included in the noble gas notation for an element that had valence…
which of the following symbols would be included in the noble gas notation for an element that had valence electrons in the 5s subshell?\no ar\no kr\no xe\no rn
Answer
Brief Explanations:
Noble - gas notation uses the symbol of the nearest noble gas with an atomic number less than the element in question. Elements with valence electrons in the 5s sub - shell start after krypton (Kr). Krypton has a complete electron configuration up to the 4p sub - shell. The next elements will start filling the 5s sub - shell. So, Kr is used as the noble gas core for elements with 5s valence electrons.
Answer:
B. Kr